Cultivator.



J, OLSON.

GULTIVATOR.

APPLICATION FILED NOV. 19, 1909.

v Patented Nov. 5, 1912.

6 SHEETS-SHEET l.

Patented Nov; 5, 1912 6 SHEETSSHEET 2.

IE Q EZE? I J. OLSON.

GULTIVATOR.

APPLICATION FILED NOV.19, 1909.

J. OLSON.

UULTIVATOR.

APPLICATION IILBD NOV. 19, 1909.

Patented Nov. 5, 1912.

6 SHEETSSHEET 3.

J. OLSON. CULTIVATOE. APYLIOATIOH FILED NOV. 19, 1909.

Patented Nov. 5, 1912.

6 SHEETS-SHEET 5.

J. OLSON.

GULTIVATOR.

APPLICATION rum) NOV.19, 190s.

Patented NOV.5,1912.

6 SHEETS-SHEET 6.

- tion; Fig. 2 is a detail, being a longitudinal section on line 9-9 of Fig. 8;--Fig. 1,0 is a 'ley, in the county of Kankakee andState of ful Improvements in Cultivators, of which Y cultivating devices are simultaneously swung balanced when the gangs are raised to carryinga side view of one of the lifting-levers reta n anion.

JOHN OLSON, OF BRADLEY, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 SEARS, ROEBUCK & COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.

CULTIVATOR.

Specification of Letters Patent.

Patented Nov. 5, 1912.

To all whom it may concern:

Be it known that LJOI-IN OLSON, a citizen of the United States, residing at Brad- Illinois,have invented certain new and use- .the following is a specification, reference being had to the accompanying drawings.

My invention relates to cultivators, and particularly to that type of cultiva-tors in which the carrying wheels are arranged to be turned to the right or left to guide the machine to one side or the other, and the to one side or the other corresponding to the direction in which the wheels are turned.

It has for its object to provide certain improvements in cultivators of the type indicated, by which the weight of the cultivator gangs and of the driver are more nearly ing position; to provide means for automatically locking the gangs against lateral movement when they are in carrying position, and also at the same time to lock the wheels so that they cannot swing laterally on their pivots; to provide improved coupling devices for connecting the front ends of the beams to the front arch; and'otherwise to improve the construction of cultivators as will be hereinafter pointed out. I

In the accompanying drawings, in which I have shown my improvements as applied to a cultivator in which the wheels are turned to one side or the other and the gangs correspondingly shifted by latcral movement of the seatsu1 port,*F igure' 1 indicates a side elevation of my improved cultivator, on'e wheel being removed, the cultivator beam being shown in operative posivertical section on line 2-2 of Flg. 5; Fig. 3 is a view similar to Fig. 1 showing the gangs in carrying position; Fig. 4c is a detai-l, being a cross-section on line 4 l of Fig. 5; Fig. dis a plan view; Fig. 6 is an enlarged detail, being a vertical cross-section on line 66 of Fig. 1; Fig. 7 is a detail. being a vertical section on line 7-7 of Fig, 6; Fig. 8 is an enlarged detail, be-

and partsconnected thereto; Fig.4) is horizontal sect-ion on line 10-l0 of Fig'. 9; Fig. 11 is an enlarged detail of the front end cate the carrying-wheels, which are mounted on spindles carried by sleeves l7-l8. respectively, which are mounted in a vertical position upon the ends of the main axle. The axle is composed of an intermediate portion formed-of parallel bars 1920 secured together and spaced a suitable distance apart and end members best formed of rods 2l-22 journaled between the ends' of the intermediate portion of the axle, as best shown in Fig. 5. Instead of making the end members of the axle of solid rods, they may be tubular, or any other suitable construction may be employed which will permit the swinging of the axle spindles backward or forward about tion of the axle as a center and which will permit of the turning of the wheels to one side or the other at an angle with the'line of draft. In the construction shown the sleeves 1Tl8 are pivoted upon the upright portions of the rods 2122 so that the wheels may be turned freely to the right'or to the left as desired.

2324 indicate arms, whichare secured to the upper ends of the sleeves l7-1S and are connected together and to the mechanism for shifting the wheels laterally by transversely-extending straps 25-26. As best shown in Fig. 5, the outer ends of the straps 2526 are pivotally connected with the arms 23Q4.

27 indicates a seat-supporting frame, which is composed of two members pivot-ally connected together. The inner member is composed of a Y-shapcd frame 28, which carries a plate 29 pivoted at 30 to the center of the main axle. The stem of the Y-shaped frame 28 extends forward from the pivot 30, being composcdof two straps 28 253", as

shown in' Fig. 4. At a point forward of the pivot30 said straps 28"-28 supporta I block 31, which is held in place by a bolt 32.

as shown in Fig. i, and projects/upward above the side edges of the straps 2,8-28, as best shown at 33 111 Fig. 1. .[llns upwardly-projecting end of the block 31 is 11; and Fig. 1 1 is a perspecthe main por-' circular and forms a pivot-bolt upon which theends of the straps 2526 are pivoted, as

also shown in Fig. -13. Thus said straps 25- 26 are connected together by said pivot-bolt and are also connected to the front portion of the seat-supporting frame. The bars 28-28 are provided with a series of holes 34 at different distances from the pivot 30 so that the extent to which the wheels are .turned in one direction or the other by the swinging of the seat-supporting frame about its pivot 30 may be varied. To permit of ends of said frame 28,

pivots connecting frame.

38 indicates laterally-projecting pins, which project from brackets 39 carried at the rear ends of the member 28 of the seatsupporting frame,sa id pins projecting under the rear member 36 of the seat-supporting frame, as shown in Figs. 1 and 5, and consequently forming a support for the rear portion of the seatframe.

40 indicates the seat, which is adj ustablymounted on the rear portion of the member 36'of t he seat-supporting frame and is movable longitudinally thereof, being held in position by a clamp 4-1, as shown in Fig. l. 42 indicates braces extending from the pivot 30 to the side members of the frame 28, as shown in Figs. 1 and 5. By this construction the rear portion 36 of the seat-supporting frame may be thrown up out of operative position when desired.

' toward each other and secured to 45, as shown in Fig. 5.

46"indicates a strap secured to the upper 50 ends of thrust-bars 53-54, the rear ends of ,respectivey, as shown in 43-44 indicate side members of the frame of the machine, the rear ends of which are secured to the axle. Said side members extend 'fo1 wa rd, their front'ends being bent the tongue surface of the tongue and extending back to and connected with the axle.

l-8'indicates a crossbar secured to brackets 49 secured to the side members 43-44 of the frame of the machine, as shown in Figs. 1

and 5, said crossbar having laterally-swinging pendent rods 507-51 at its ends, as shown in Figs 1 and 5.- i

-52 indicates a front arch, to the horizontal end portionsof which the front ends of the cultivator beams are 'pivotally connected, as hereinafter described The end portions of the front arch in connected to the forward w'hiehare'connected to the sleeves 17-18, Fig. 1, preferably by hooks 55, their front ends being connected to the ends of the front arch 52 by vertical cultivating devices to one side or the other,

as hereinafter described. The front'ends of the thrust-bars 53-54 extend down in front of the ends of the front arch, as shown at 57 in Fig. 1, and the lower ends of the rods 5051 are pivotally connected to them, as also shown in Fig. 1. The rods 50--51 serve to hold the arch down properly in position without interfering with its freedom of movement 2 in a lateral direction. The intermediate portion of the front arch is supported by the front ends-of the members 2828" of the seat-support, as best shown in Fig. 6, said members extending under the central portion of the front arch 52, as shown, and being engaged by a;pin 58 secured to the front arch and projecting between the members 2828". Thus the front end of the seat-support not only supports the central portion of the front arch, but also serves to move it laterally to correspond with the turning of the wheels to one side or the other.

59 indicates a rock-shaft, which extends transversely of themachine in advance of the'central portionyof the front arch 52, being supported by earsGO projecting rearwardly from the brackets 49, as shown in Figs. 1 and 6. The rock-shaft has crankarms 61 at its ends, the ends of which are connected by connecting rods 62 with the lower portions of the sleeves 17lS, as best shown in Figs. 1 and 3. The rock-shaft 59 carries a fork'6 3, which is fixedly secured thereto at a point opposite one of the upright portions of the front arch 52in osition to engage said arch when the sha t 54 is rocked in the proper direction, as indicated by dotted lines in Fig. 7. The purpose of the fork 63 is to engage the front arch when the cultivators are. in carrying position and thereby prevent QIldWlSGIIlOVG- ment of said arch and consequently lateral movementof the cultivating devices, and at the same time lock the wheels so that they cannot swing to one side or the other, as will more clearly hereinafter appear.

64-435 indicate vices, disks, but may beof any other suitable form ,of furrow-opener or cultivating devices. The cultivatingdevices are carried at the gangs of cultivating de which, 1n the construction shown, are

rear ends of beams; 66, thefront ends of which are p votally connected with the horizontalportions of the front arch 52so as to swing vertically but not laterally, as best shown in Figs. 11 and 12. F or the purpose of so connecting the beams Withthe front arch 52 they are connected=to the vertical web 67 of a hanger 68 by bolts 69, as best shown in Fig. 11, one of said bolts being fitted in a segmental slot hanger may i the front arch.

'70 so that the be adjusted relatively to the beam. At its front end the hanger is pro-- vlded with a sem1-c1rcular bearing 71 adapted to fit upon a sleeve or p1pebox 72 1nount ed on the end of the horizontal portion of 73 lndicates a semi-circular clamp, which coacts with the bearings 71 to encircle the 'sleeve'72 upon. Said clamp is of the shape shown in Fig. 14, having lugs 74 at one end which fit over theends of a pin 75 carried by the hangers 68, as shown in Figs. 11 and 13 and points backof the registers with ried by the bearing 71. A bolt 78 which contongue in advance of having at its opposite edge an earTli which a corresponding ear 7? carnec-ts said ears serves to bind the two menr bers ofthe bearing together upon the sleeve 72 in the manner shown in Figs. 11 and 12. '79 indicates draft-straps depending from the ends of a draft-bar S Osecured to the the cross-bar 48. Said draft-straps, to which-the usual swingle= trees are connected, are connected by'conne'ctingrods 81 with the thrust-bars 54 at pivots of the cultivator beams by brackets 82, as best shown'in Fig. 1. Preferably the rods 81 are provided with interposed springs 83 that the draft is yieldingly applied to the front ends of the beams throughthe connecting devices above described. v

84 ,indicates a forwardly and upwardly extending rear arch, the lower ends of which are cbnnected to the rear portions of the beams 66 and serve to hold them properly apart, assisting the front couplingsin that regard.

41y The cultivator;gangs are lowered or raised mounted upon the sleeve to carry them into or out of operative position by means of lifting levers arranged so that the two gangs may be simultaneously raised or lowered, or either gang separately may be raised or lowered. The lifting mechanism comprises a rock-shaft 85 extending transversely of the machine and supported in suitable bearings in brackets 86. and 87 carried by the main, frame, as shown in Figs. 1 and 8. At one end, preferably the right-hand end, as shown in Fig. 5, the rock-shaft is provided with a split sleeve which is fitted thereon so to rotate therewith, being secured in position by a set-screw 89, as shown in Fig. 10.

90 indicates a lever, which is pivotally 88 preferably on the end thereof which'is reduced in diameter, said lever being held in position by'a collar 88, as shown in Fig. 9, so that it may rock independently on said sleeve.

'91 indicates a stationary notched segment provided on the sleeve 88 adjacent to the lever 90 and adapted to be engaged by a spring-actuated dog carried by said lever in and secure the hanger 08 there-' crate to rock the sleeve 98. I

is rocked 'the rod 101, as best shown 1.-n 'ioning springs 106107 are provided on the the usual way. The arrangement is such that when the lever 90 is locked to the segment 91, the rocking of the sleeve actuatcs said lever to lift the gang connected to it as hereinafter described, but by releasing the dog from the rack 91 the lever 90 may be rocked independently of the rock shaft 92 indicates a lever arranged parallel with the lever 90 and fixedly secured at its lower end to an arm 93 rising from the sleeve 88, as shown in Fig. 9, so that said lever 92 is rigidly connected with the sleeve.

94 indicates a stationary notched which is preferably an integral'part of the bracket 80, as best shown in Fig. 8. The lever 92 is provided with a spring-actuated locking dog 95 adapted to engage the teeth of the segment SH to lock the lever in its di'ilerent positions of adjustment.

90 indicates an arm n'ojecting angularly from the lever in line with the rock-shaft 85, as shown in Fig. 8. Said-arm is connected by a connecting-rod 97 with one of the crank-arms (31 of the lock-shaft 59, as best shown in Fig. 8. It will be apparent that when the lever 92 is drawn backward the arm 96 through the connecting-rod 97 and arm (51 will op swinging I) )th of its arms 01 backward and cmisequent y moving the connecting-rods 62 backward. This will swing the vertical portions of the rear axle back, the rounded portions of the end members of the axle permitting such swinging. The effect of this operation is to throw ,the hubs of the wheels to the rear. the same time that the will be hereinafer explained.

98 indicates a sleeve mounted on the opposite end of the rock-shaft 85 and rotating therewith, as best shown in Fig. 5.

99 indicates a notched segment connected to and preferably formed integral with said 100 indichtes an arm rigidly connected to rock-shaft 59, thereby- This operation takes place at gangs are lifted, as

segment,

the sleeve 98 andprojecting forwardly therefrom, said arm corresponding with the arm 90 at the opposite end of the rocleshatt. The arm 1.00 is connected by a connecting strap 101 with the adjacent arm (31 of the rock-shaft 59, so that it also serves to rock the rockshaft 59.

102 indicates a hand-lever pivoted upon the sleeve 98 and having a spring-actuated dog 103 adapted lever 102 is connected by a connecting-rod 104 with the cultivator beam 66 at thelefthand side of the machine,-preferably by which is pivoted in means of a collar. 105 the lower end of said lever and slides upon Fig. 5. Cushrod 104 above'and belowthe collar 105, as

when the sleeve 98 to engage the rack 99; The. I

released from the rack 99.

. above and below the collar 108, as shown.

tionl Thus by operating the lever 90 the right hand gang may be raised and lowered independently. lVhen either of the levers 90 or 102 are operated independently in the manner described, the rock-shaft 59 is not rocked as said lovers have no independent connection with said rock-shaft, and consequently the position of the rear wheels is not changed.

Vhen it is desired to raise bothgangs simultaneously, the lever 92 is operated, the levers 90 and 102 being in locking engagement with their respective segmental racks 91 and operates to rock the sleeve 88, which consequently actuates the lever 90 through its segmental rack 91 and the lever 102-through its segmental rack 99. At the same time the arms 96 and 100 are swung upward, thereby drawing back on both the arms 61 of the rock-shaft 59 and consequently throwing the axle spindle backward in the manner shown in Fig. 3. p This operation takes place coincidentally with the lifting of the cultivator 'angs, the result being that the weight of t 1e gangs-is more nearly balanced. As the draft-straps 79 are connected with the thrust-bars '53-5 1 by the rods 81 and said'thrust-bars are connected at their rear ends with-the spindle supports or sleeves 17-18 below. the pivoted upper ends thereof, as shown in Fig. 1, when the gangs are out of the ground and the lever 92 is released, the draft of the team tends to rock the spindle supports so as to move the spindles forward and consequently assists in restoring the axle to its vertical or operative posi- As has been explained, the rocking ofthe rock-shaft. 59 also operates to lock' the front arch 52 against lateral movement,

and as the laterally-swinging seat-support is connected with said arch through the members 28 28". and said seat-support 'is' also connected by the straps 25-26 and arms 232el with the vertical pivots of the carrymg wheels, it will be apparent that by thus locking-the front arch against lateral movement, the carrying wheels Will simultaneously be automatically locked against lateral swinging upon their pivots. This constitutes an important feature of 'myinvention and is a construction which is very desirable in machines of this type, since When the lever 92 is drawn back it when turning at the ends of rows or on the they are made extra strong they are not apt to stand up under the strain, whereas by my improved construction the frame and wheels are practically made rlgid as soon as the cultivators are raisedto carrying position, and consequently the strain in turning issustainedlargely by the frame. The arrangement of theoperating levers so that they are drawn back to lift the gangs and also to shift the weight of the gangs when in carrying position is very desirable as it enables the operator to operate them to the best advantage.

112 indicates a spring, which assists in the operation when both gangs are lifted simultaneously', said spring being connected at its rear end with a staple 113 on the frame and at its-forward end with one of the arms 61 on the rock-shaft 59, as shown in Figs. 5 and 9.

114; indicates foot-rests provided at the rear ends of the beams so that the operator may press the gangs to one side or the other when shifting the wheels and secure the necessary purchase to swing the seat-support laterally.

While I have shown and described my improvements as applied to single-row cultivator, they may also be applied to other types of agricultural implements, and my invention is, therefore, not restricted to their embodiment in a cultivatorstrictly speaking. I

That which I claim as my invention, and desire to secure by Letters Patent, 1s, r

1. In a cultivator, the combination of a frame, wheel-spindles adapted to swing backward and forward and to turn about vertical axes, wheels mounted on said spindle's, a laterally-swinging lever pivotally mounted at the-rear portion of the frame and extending forwardly therefrom, a trans versely-movable' arch, gangs having latei.

ally-rigid connections with said arch, means connecting said lever with said arch, and means connecting said lever with said wheelspindles for turning the same about vertical axes. y

2. In a cult-ivator, the combination of a frame, wheel-spindles adapted to swing 30 cal axes,

3. In a cultivator, the combination of a frame, wheels supporting the frame, a laterally-movable front arch, cultivator-gangs connected with the front arch, means for 5 raising the cultivator-gangs out of operative position, and means for automatically engaging and locking the front arch against lateral movement when the gangs are raised out of operative position.

In a cultivator, the combination of a frame, wheels supporting the frame, a laterally-movable front arch, laterall -rigid cultivator-gangs connected with the front arch, means for raising the cultivator-gangs outof operativeposition, and means for automatically engaging and locking the front arch 'against lateral movement when the gangs are raised out of operative position. In a cultivator, the combination of a frame, wheels mounted to turnabout vertical axes, a laterally-movable front arch, cultivator-gangs connected with tlie'front arch, means for raising the cultivator-gangs out of operative position, and means for automatically engaging and locking the front arch against lateral movement when the gangs are raised out of operative position.

6. In a cultivator, the combination of a frame, wheels mounted to turn about vertia laterally-movable front arch, laterally-rigid cultivator-gangs connected with the font arch, means for raising the cultivator-gangs out of operative position, and means for automatically engaging and looking the front arch against lateral movement when the gangs are raised out of operative position.

'7. In a cultivator, the combination of a frame, Wheels mounted to. turn about verti- 40 cal axes, laterally-movable cultivator-gangs,

means for raisin the cultivator-gangs out of operative position, a laterally movable lever for moving said gangs laterally and means for automatically locking said lever against lateral movement when the gangs are raised out of operative position.

8. Ina cultivator, the combination of a frame, wheels mounted to turn about vertical axes and movable backward and for- Ward relatively-to the frame, laterally-movable cultivator-gangs, means for raising the cultivator-gangs out of operative position, a laterally movable lever for moving said gangs laterally andmeans for automatically 55 looking the lever against lateral movement and for moving said wheels backward relatively to the frame when the gangs are raised out of operative position.

9. In a cultivator, the combination of a frame, Wheels mounted to turn about vertical axes, a laterally-movable front arch, cultivator-gangs connected with the front arch, means for raising the cultivator-gangs'out of operative position,--and means for auto- 65 matlcallyengaging and locking the front arch against lateral movement and for locking the wheels against rotary movement about their vertical axes when the gangs are raised out of operative position. i

10. In a cultivator, the combination of a frame, wheels mounted to turn about vertical axes and movable baclnvard and forward relatively to the frame, a laterallymovable front arch, cultivator gangs con nected with the front arch, means for raising the cultivatorgangs out of operative position, and means for automatically engagingand locking the frcnt arch against lateral movement and for moving the wheels backward relatively to the frame and for locking them against rotary movement about their vertical axes when the gangs are raised out of operative position.

11. In a cultivator, the combination of a frame, wheels mounted to turn about vertical axes, a laterally-movable front arch, cultivator-gangs connected with the front arch, a laterally-swinging lever for turning said wheels about their vertical axes and moving the front arch laterally, means for raising the cultivator-gangs out of operative position, and means for automatically l0cking said lever against lateral movement when the gangs are raised out of operative position.

12. In a cultivator, the combination ofa frame, wheels mounted to turn about vertical axes, a laterally-movable front arch, cultivator-gangs connected with the front arch, a laterally-swinging seat-support for turning said vwheels about their vertical axes and moving the front arch laterally, means for raising'the cultivator-gangs out of operative position, and means for automatically locking said seat-support against lateral movement when the gangs are raised out of operative position.

13. In a cultivator, th'e combination of a frame, wheels mounted to turn about vertical axes, a laterally-movable lever for turning the Wheels about their vertical axes. cultivator-gangs, means for raising the cultivator-gangs out of operative position, and means for automatically locking said lever to prevent lateral movement thereof when the cultivator-gangs are raised out of operative position.

14. 'In a cultivator, the combination of a' frame, wheels mounted to turn aboutvertical axes and movable backward and forward relatively to the frame, a laterally-movable lever for turning the wheels about their vertical axes, cultivator-gangs, means for raising the cultivator-gangs out of operative po .on, and means for automatically locking said lever to prevent lateral movement l creof and formoving the wheel backward rclatively to -the frame when the cultivatorgangs are raised out of operative position.

15. In a cultivator, the combination of a frame, wheels mounted to turn about vertical axes, a laterally-movable front arch, latorally-rigid cultivator-gangs connected with the front arch, means for raising the culti lateral movement when t 1e gangs are raised out of operative position.

16, In a cultivator, the combination of a frame, wheels mounted to turn about vertical axes, cultivator-gangs, means for raising the cultivator-gangs out of operative position, a laterally-swinging lever for turning said wheels about their vertical axes, and means for automatically locking said wheels against rotation about their vertical axes when the cultivator-gangs are raised out of operative position.

17. In a cultivator, the combination of a frame, wheels mounted to turn about vertical axes. cultivator-gangs, means for raising the cultivator-gangs outof operative position, a laterally-swinging seat-support for turning said wheels about their vertical axes, and means for automatically locking said wheels against rotation about their vertical axes when the cultivator-gangs are raised out of operative position.

18. In a cultivator, the combination of a frame, wheels supporting the frame, a laterally movable front arch, cultivator gangs connected with the front arch, means for raising the cultivator-gangs out of operative position, a roclcshaft, locking means carried by said rock-shaft and adapted to engage the front arch to lock it against lat-' eral movement, a lifting lever for lifting the cultivator-gangs, and means for rocking said shaft when said lifting lever is operated to life the gangs to lock said front arch against lateral movement.

19. Tn a cultivator. the combination of a frame. wheels therefor. said wheels being arranged to move backward and forward relatively to the frame, a transversely-movable front arch, cultivator-gangs having laterally-rigid connections with said arch, lover mechanism for raising and lowering the gangs, :1 rock-shaft extending transversely at the front part of the frame, and having means for locking the front arch against lateral movement, means actuated by the rock-shaft for moving the wheels lawkward when said shaft is rocked in the proper direction, and means actuated by said lever mechanism for rocking said shaft to move the wheels backward when the cultivator gangs. are lifted.

20. In a cultivator. the combination of a frame, wheels therefor, said wheels being movable backward and forward relatively to the frame, a front arch, cultivator-gangs connected with said front arch, a rock-shaft having means engaging said front arch when said shaft is rocked to lock the same against lateral movement, lever mechanism for lifting the gangs, means for rocking f said rock-shaft when said lever mechanism is operated to lift the gangs, and means connected with said rock-shaft for moving the. wheels backward when the gangs are lifted. 21. In a cultivator, the combination of a frame, wheels movable backward and forward relatively to the frame, a front arch,

cultivator-gangs, having laterally rigid connections with said arch, a rock-shaft mounted on the frame and connected with the' connected with said rock-shaft to rock said shaft when the gangs are lifted simultaneou'slv, and levers independent of said rockshaft for lifting the gangs separately.

22. In a cultivator, the combination of a frame, wheels therefor, wheel-spindles, rocking means connecting the spindles with the f nine and arranged to swing backward and forward, cultivating devices, laterallyswinging draft connections, means connecting said' draft connections with saidspindle supports, and means for lifting the cultivating devices out of'operativeposition.

23. In a cultivator, the combination of a frame, a xle members at opposite sides of said frame adapted to swing about horizontal axes, wheels carried by said axle members, a rock-shaft supported by said frame, said shaft having arms connected with said axle backward by the rocking of said shaft, a;

lifting lever rock-shaft mounted on said frame and having arms connected with the arms of said rock-shaft, cultivator gangs, a lifting lever mounted on said lifting-lever rocleshaft and connected with said gangs, a laterally movable front arch connecting the front ends of the gangs, and means carried by said first-mentioned rock-shaft and (operating to lock said front arch against lateral movement when said rock-shaft is rocked. it,

24. Tn a cultivator, the combination of er frame, wheels therefor, wheel-spindles, rock ing means connecting the spindles with the frame and arranged to swing backward and forward, cultivating devices, laterallyswinging draft connections, means connecting said draft connections with said spindle supports, and means for lifting the cultivating devices out of operative position and for moving the spindles backward when the cultivating devices are lifted.

25. In a cultivator, the combination of a frame,- axle members at opposite sides of said frame adapted to swing about horizontal axes, wheels mounted on said axle members to swing about vertical axes, means for turning the wheels to one side or the other. a rock-shaft supported by said frame, said reet 'bat't having arms connected with said axle members and operating to move the wheels backward by the rocking of said shatt. a lifting-lever rock-shaft mounted on said traine and having arms connected with the arms M said roeli-sliaft, cultivator gangs, a litting lever mounted on said lifting-lever reels-shaft and connected with said gangs. a front arch connecting the front ends of the gangs. and means carried by said firstmentioned rock-shaft and operating to lock said front arch an'ainst lateral movement when said roeleshatt is rocked.

26. in a cultivator. the combination of a frame. a 'le members at opposite sides of said frame adapted to swing about horizontal axes. whee s mounted on said axle members to swing about vertical axes a laterallymovable seat-supportconnected with the wheels for turning them to one. side or the other. a rock-shaft supported by said Frame,

' said roclr-shatt having arms connected with vthe sa d axle members and operating to move the wh els backward by the rocking of said sllal't'. a littin r-lever ro k-shaft.mounted on said trame and having arms connected with arms of said rock-shaft, cultivator gangs, and a liftinglever mounted on said lifting-lever rock-shalt and connected with said gang's.

'27. In a cultivator. the combination of a Frame, axle mmnbers at opposite sides of said frame adapted to swing about. horizon tal a ves whe ls mounted on said axle memb r to swing; about vertical axes, a laterallyin -vable seat-support connected with the wheels l'er turning them to one side or the other. a roelcstia it supported by said frame, raid me having arms connected with said axle members and operating to move the wheels lmelnvantlrv the rocking of said lm'l't. a lilting-lever rock-shaft mountedon w.- ill said frame and having arms connected with the arms of said rock-shaft, cultivator gangs,

a lifting lever mounted on said lifting-lever rock-shaft and connected with said gangs. a front arch connecting the trout ends of the gangs, and means carried by said first-mentioned rock-shaft and operating to lock said front arch against lateral movement when said rocleshaft is rocked.

28. In a cultivator, the combination of a frame, a rear axle comprising wheel-spindles and supports therefor, said supports being pivoted to swing to move the spindles backward and forward. cultivator beams, cultivatingdevices carried by said beams, latex ally-swinging thrust-bars connected with the forward portions of said beams and with said spindle supports below the pivots thereof. and dratt-deviees connected with said thrushbars.

29. In a cultivator. the combination of a frame, a rear axle comprising wheel-spindles and supports therefor, said supports being pivoted to swing to move the spindles backa; ward and. forward, cultlvator beams, cultirating" devices carried by said beams. laterally swinging thrust-bars connected with the forward portions of said beams and with said spindle supports below the pivots there of. draft-devices connected with said thrusthars, and means for lifting the cultivating devices out of operative position.

30. In a cultivator, the combination of a frame, a rear axle comprising wheel spindles and supports therefor, said supports being pivoted to swing to move the spindles backward and forward, cultivator beams, laterally-swinging means connected with the front ends of said beams and with the spindle supports, cultivating devices carried by said beams, and means actuated by the. draft of the team for moving the rear axle into operative position.

JOHN OLSON. \Vitnesses:

\V. R. Bonn,

I. O. MoN'rAGUn. 

